Schneiderian Membrane
Pronunciation: SHNY-der-ee-an MEM-brayn
The respiratory mucosa lining the maxillary sinus, critical in sinus augmentation procedures.
Full Definition
The Schneiderian membrane is the pseudostratified ciliated columnar epithelium that lines the maxillary sinus cavity. Named after German anatomist Victor Schindler, this membrane is of crucial importance in oral surgery, particularly during sinus lift procedures and maxillary posterior tooth extractions. Perforation of this membrane during surgery can lead to complications including sinusitis, chronic drainage, and implant failure. The membrane's thickness varies from 0.8mm to 1mm in healthy individuals but can become significantly thickened in cases of chronic sinusitis.
Usage
Usage note: Always capitalize as it is an eponym; critical structure in maxillary sinus procedures.
In Context
- "Careful elevation of the Schneiderian membrane is essential during lateral window sinus augmentation." — surgical protocol
- "A small perforation in the Schneiderian membrane was repaired using collagen membrane." — operative report